TM 5-3805-280-24-2
Crankshaft, Main Bearings and Flywheel
15
IMPORTANT: Before removing main bearing caps,
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check for proper torque on all main
bearings.
NOTE: When crankshaft is to be removed, leave front
and rear main bearing caps installed until all
connecting rod caps have been removed.
5. Check main bearing caps for arrows (A) cast in main
bearing cap, and numbers (B) stamped on cap and oil
pan rail. Arrow points toward camshaft side of engine.
If there are no numbers, stamp corresponding numbers
A--Cast Arrows
on cap and oil pan rail to assure correct placement of
B--Stamped Numbers
bearing caps during reassembly.
RG,15,DT7444 1914NOV972/3
6. Remove main bearing caps by extending cap screws
(C) and forcing heads of screws together. Wiggle
bearing cap back and forth while applying an upward
force with cap screws until free from main bearing cap
support.
IMPORTANT: Keep matched bearings with their
respective main bearing cap for
comparison with crankshaft journal
(surface wear) from which removed.
7. Visually inspect condition of bearing inserts and
crankshaft main journals as bearing caps are removed.
C--Cap Screws
RG,15,DT7444 1914NOV973/3
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